One reason CNT players are having trouble in the World Tour is that they're not used to the idea of competing abroad so often. They prefer to spend more time on training and use the World Tour to tune up before the majors.
With the World Ranking reform, they're now forced to use competition for training instead, a model that fits perfectly well with the ideal of the JNT. Ito, for instance, has said she likes playing matches MUCH more than working on the basics.
OTOH, this competition-oriented approach doesn't sit well with the CNT. They have to field their B team players to the World Tour WAY more than before, many of which are supposed to play the role of copy players, serving the few cream-of-the-crop players. The "no separation of association" is completely at odds with their central idea of working as a team. Now you have these copy players thinking "perhaps I have a chance to make it big, too." You could sense the team spirit is not as solid anymore.
Another factor is that there has been a restructuring of the analytics team. Recent rumor has it the team has been dissolved. Li Xiaodong used to lead the team but he retired some time after Rio Olympics. Liu Heng is supposed to be the team leader now, and he once wrote on his Weibo denouncing the rumor.
However, the
CTTA have recently issued a request for tender on a whole range of services in sports and health science for the players. This suggests the team is definitely going through a significant change at the moment.